feat: add Vercel Web Analytics to the web app

- Add @vercel/analytics and render <Analytics /> in the root
  layout. It's privacy-friendly (no cookies) and a no-op
  unless deployed on Vercel with Analytics enabled, so it
  doesn't affect the static build or non-Vercel hosting.
- Reformat globals.css multi-value CSS properties to satisfy
  the current Prettier (pre-existing drift, unrelated edit).

Author: nixrajput

web/app/globals.css

@@ -19,8 +19,8 @@
   --muted: #7e8ca3;
   --line: #25324d;
 
-  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial,
-    sans-serif;
+  --font-sans:
+    ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
   --font-mono: ui-monospace, "SF Mono", "JetBrains Mono", "Fira Code", Menlo, Consolas, monospace;
 }
 
@@ -185,7 +185,8 @@
   }
 }
 .flowgrid {
-  background-image: linear-gradient(var(--line) 1px, transparent 1px),
+  background-image:
+    linear-gradient(var(--line) 1px, transparent 1px),
     linear-gradient(90deg, var(--line) 1px, transparent 1px);
   background-size:
     56px 56px,

web/app/layout.tsx

@@ -1,4 +1,5 @@
 import type { Metadata } from "next";
+import { Analytics } from "@vercel/analytics/next";
 import "./globals.css";
 import {
   SITE_URL,
@@ -100,6 +101,10 @@ export default function RootLayout({ children }: { children: React.ReactNode })
           // Structured data is static, build-time JSON — safe to inline.
           dangerouslySetInnerHTML={{ __html: JSON.stringify(JSON_LD) }}
         />
+        {/* Vercel Web Analytics — privacy-friendly (no cookies). A no-op unless
+            deployed on Vercel with Analytics enabled, so it won't affect the
+            static build or non-Vercel hosting. */}
+        <Analytics />
       </body>
     </html>
   );

web/package-lock.json

@@ -16,6 +16,7 @@
     "next": "16.2.9",
     "react": "19.2.7",
     "react-dom": "19.2.7",
+    "@vercel/analytics": "^2.0.1",
     "gray-matter": "^4.0.3",
     "react-markdown": "^10.1.0",
     "remark-gfm": "^4.0.1",